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1.发明申请公开(公告)号：US20230073136A1
公开(公告)日：2023-03-09
申请号：US17903171
申请日：2022-09-06
Applicant: Ticona LLC
Inventor： Hendrich A. Chiong , Venkata M. Nekkanti
IPC: C08G75/0281 , B01D3/36
Abstract: Methods and systems are provided for recovering an organic solvent from a waste sludge generated during formation of a polyarylene sulfide. Methods include combining the waste sludge with a liquid extractant that extracts the organic solvent into a homogeneous liquid phase. Upon a temperature change, the homogeneous liquid phase can separate into an organic solvent-rich liquid phase and a liquid extractant-rich liquid phase. The two liquid phases can be separated and further processed if desired to further purify the recovered organic solvent. Methods can also include forming the polyarylene sulfide by a polymerization process and thereafter purifying a slurry of the polyarylene sulfide. A liquid washing product is formed as a result of the purification process, which can be subjected to a distillation process that forms an organic solvent-rich stream and the waste sludge.
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公开(公告)号：US10106654B2
公开(公告)日：2018-10-23
申请号：US15045313
申请日：2016-02-17
Applicant: Ticona LLC
Inventor： Hendrich A. Chiong
IPC: C08G75/02 , C08G75/14 , C08G75/0204 , C08G75/025 , C08G75/0281
Abstract: A method for forming a polyarylene sulfide is described. The method can include a multi-step cooling and precipitation process in which the cooling rate of the solution that carries the polymer is decreased during a portion of the overall cooling. This slower cooling period can encompass at least a portion of the period during which the polymer precipitates from the solution. The precipitation process can form polyarylene sulfide particles with good particle integrity and a narrow particle size distribution, which can reduce fines and improve downstream processing and final product characteristics.
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公开(公告)号：US20160280859A1
公开(公告)日：2016-09-29
申请号：US15045321
申请日：2016-02-17
Applicant: Ticona LLC
Inventor： Hendrich A. Chiong
IPC: C08G75/14
CPC classification number: C08G75/14
Abstract: A method for forming a high melt viscosity polyarylene sulfide is provided. The method comprises reacting a sulfur source with a dihaloaromatic compound during a first stage to form an arylene sulfide prepolymer having halogen end groups; and thereafter, reacting the arylene sulfide prepolymer with a secondary sulfur source during a second stage to form the polyarylene sulfide.
Abstract translation: 提供了形成高熔点粘度聚芳硫醚的方法。 该方法包括在第一阶段使硫源与二卤代芳族化合物反应形成具有卤素端基的亚芳基硫醚预聚物; 然后在第二阶段使亚芳基硫醚预聚物与仲硫源反应形成聚芳硫醚。
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公开(公告)号：US20160244567A1
公开(公告)日：2016-08-25
申请号：US15045296
申请日：2016-02-17
Applicant: Ticona LLC
Inventor： Venkata M. Nekkanti , Hendrich A. Chiong , Jacob Grayson
CPC classification number: C08G75/14 , B01D11/0288 , B01D21/02 , C08G85/002
Abstract: A method for washing a polyarylene sulfide with a washing solution that contains a carefully controlled solvent content is provided. More particularly, the washing solution typically contains water (e.g., deionized water) in an amount of from about 30 wt. % to about 70 wt. % and an aprotic organic solvent in an amount of from about 30 wt. % to about 70 wt. %. Within such carefully controlled ranges, the present inventors have discovered that the polyarylene sulfide can retain a relatively high oligomer content, which in turn, helps minimize the melt viscosity.
Abstract translation: 提供了一种用含有精心控制的溶剂含量的洗涤溶液洗涤聚芳硫醚的方法。 更具体地，洗涤溶液通常含有约30重量％的水（例如去离子水）。 ％至约70wt。 ％和非质子有机溶剂，其量为约30wt。 ％至约70wt。 ％。 在这样仔细控制的范围内，本发明人已经发现，聚芳硫醚可以保持相对高的低聚物含量，这又有助于使熔体粘度最小化。
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公开(公告)号：US12142820B2
公开(公告)日：2024-11-12
申请号：US16995890
申请日：2020-08-18
Applicant: Ticona LLC
Inventor： Xiaowei Zhang , Xinyu Zhao , Young Shin Kim , Hendrich A. Chiong , Christopher McGrady
IPC: H01Q1/24 , C08K3/18 , C08K3/22 , C08K3/34 , C08K3/36 , C08K3/40 , C08K7/14 , C08K7/20 , C08L67/04 , H01Q21/06 , H04B7/0413
Abstract: A 5G system comprising at least one antenna element configured to transmit and receive 5G radio frequency signals and at least one electronic component is provided. The antenna element, the electronic component, or both, comprise a polymer composition that includes a liquid crystalline polymer that contains repeating units derived from naphthenic hydroxycarboxylic and/or dicarboxylic acids in an amount of about 10 mol. % or more. Further, the polymer composition exhibits a dielectric constant of about 5 or less and dissipation factor of about 0.05 or less at a frequency of 10 GHz.
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Patent Agency Ranking
6.发明授权公开(公告)号：US12018129B2
公开(公告)日：2024-06-25
申请号：US17903171
申请日：2022-09-06
Applicant: Ticona LLC
Inventor： Hendrich A. Chiong , Venkata M. Nekkanti
Abstract: Methods and systems are provided for recovering an organic solvent from a waste sludge generated during formation of a polyarylene sulfide. Methods include combining the waste sludge with a liquid extractant that extracts the organic solvent into a homogeneous liquid phase. Upon a temperature change, the homogeneous liquid phase can separate into an organic solvent-rich liquid phase and a liquid extractant-rich liquid phase. The two liquid phases can be separated and further processed if desired to further purify the recovered organic solvent. Methods can also include forming the polyarylene sulfide by a polymerization process and thereafter purifying a slurry of the polyarylene sulfide. A liquid washing product is formed as a result of the purification process, which can be subjected to a distillation process that forms an organic solvent-rich stream and the waste sludge.
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公开(公告)号：US10882959B2
公开(公告)日：2021-01-05
申请号：US16166248
申请日：2018-10-22
Applicant: Ticona LLC
Inventor： Hendrich A. Chiong
IPC: C08G75/14 , C08G75/0204 , C08G75/025 , C08G75/0281
Abstract: A method for forming a polyarylene sulfide is described. The method can include a multi-step cooling and precipitation process in which the cooling rate of the solution that carries the polymer is decreased during a portion of the overall cooling. This slower cooling period can encompass at least a portion of the period during which the polymer precipitates from the solution. The precipitation process can form polyarylene sulfide particles with good particle integrity and a narrow particle size distribution, which can reduce fines and improve downstream processing and final product characteristics.
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公开(公告)号：US20160244569A1
公开(公告)日：2016-08-25
申请号：US15045313
申请日：2016-02-17
Applicant: Ticona LLC
Inventor： Hendrich A. Chiong
IPC: C08G75/14
CPC classification number: C08G75/14 , C08G75/0204 , C08G75/025 , C08G75/0281
Abstract: A method for forming a polyarylene sulfide is described. The method can include a multi-step cooling and precipitation process in which the cooling rate of the solution that carries the polymer is decreased during a portion of the overall cooling. This slower cooling period can encompass at least a portion of the period during which the polymer precipitates from the solution. The precipitation process can form polyarylene sulfide particles with good particle integrity and a narrow particle size distribution, which can reduce fines and improve downstream processing and final product characteristics.
Abstract translation: 描述了形成聚芳硫醚的方法。 该方法可以包括多步冷却和沉淀过程，其中在整个冷却的一部分期间携带聚合物的溶液的冷却速率降低。 该较慢的冷却时间段可以包含聚合物从溶液中沉淀出的期间的至少一部分。 沉淀过程可形成具有良好的颗粒完整性和窄的粒度分布的聚芳硫醚颗粒，可以减少细粉，改善下游加工和最终产品特性。
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公开(公告)号：US11407861B2
公开(公告)日：2022-08-09
申请号：US16878671
申请日：2020-05-20
Applicant: Ticona LLC
Inventor： Hendrich A. Chiong
IPC: C08G75/14
Abstract: A method for forming a polyarylene sulfide with a relatively low content of volatile malodorous compounds is provided. More particularly, such low compound levels may be achieved by selectively controlling the manner in which the polyarylene sulfide is washed after it is formed.
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公开(公告)号：US20190161582A1
公开(公告)日：2019-05-30
申请号：US16166248
申请日：2018-10-22
Applicant: Ticona LLC
Inventor： Hendrich A. Chiong
IPC: C08G75/14 , C08G75/0281 , C08G75/0204 , C08G75/025
Abstract: A method for forming a polyarylene sulfide is described. The method can include a multi-step cooling and precipitation process in which the cooling rate of the solution that carries the polymer is decreased during a portion of the overall cooling. This slower cooling period can encompass at least a portion of the period during which the polymer precipitates from the solution. The precipitation process can form polyarylene sulfide particles with good particle integrity and a narrow particle size distribution, which can reduce fines and improve downstream processing and final product characteristics.
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